Date: 26 November 2013
Secondary metabolites trivial name – territrem A
Copyright: n/a
Notes:
Species: A. terreusSystematic name: 4H,11H-Naphtho(2,1-b)pyrano(3,4-e)pyran-1,11(5H)-dione, 4a,6,6a,12,12a,12b-hexahydro-4a,12a-dihydroxy-9-(7-methoxy-1,3-benzodioxo-5-yl)-4,4,6a,12b-tetramethyl-, (4aR,6aR,12aS,12bS)- 4H,11H-Naphtho(2,1-b)pyrano(3,4-e)pyran-1,11(5H)-dione, 4a,6,6a,12,12a,1Molecular formulae: C28H30O9Molecular weight: 510.532Chemical abstracts number: 70407-19-1Selected references: Ling KH, Yang CK, Peng FT. Territrems, tremorgenic mycotoxins of Aspergillus terreus.Appl Environ Microbiol. 1979 Mar;37(3):355-7. Ling KH, Liou HH, Yang CM, Yang CK. Isolation, chemical structure, acute toxicity, and some physicochemical properties of territrem C from Aspergillus terreus. Appl Environ Microbiol. 1984 Jan;47(1):98-100.Toxicity: A tremorgenic mycotoxin with an intraperitoneal LD50 in mice of 15 to 19 mg/kg body-weight. mouse LD50 intraperitoneal 17600ug/kg (17.6mg/kg) Applied and Environmental Microbiology. Vol. 47, Pg. 98, 1984.
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Mr RM is 80 and an ex-coal miner.He developed pneumoconiosis from exposure to coal dust. He also developed rheumatoid arthritis and the combination of this disease and pneumoconiosis is called Caplan’s syndrome.
His chest Xray in early 2015 shows extensive bilateral pulmonary shadowing with solid looking nodules superimposed on abnormal lung fields, contraction of his left lung with an elevated diaphragm and a large left upper lobe aspergilloma, displaying a classic air crescent. His CT scan from mid 2014 demonstrates a large aspergilloma in a cavity on the left, with marked pleural thickening around it, which is partially ‘calcified’ towards its base. Inferiorly on other images,remarkable pleural thickening and fibrotic irregular and spiculated nodules are seen, most partially calcified.
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